Method of treating porous materials



July], 1942.

c. LUCKHAUPT 2,288,634 METHOD OF TREATING POROUS MATERIALS v Fi1ed .JuIy 28, 1939 INVENTOR Chri [opher ucH'loupT B I A HIS A Q NE Patented July 7, I o I 2,288,634, Marnon or TREATING ronous MAT ERIALS Christopher Luckhaupt, Jamaican-N.

Y., assignor to L-K-L Processes, Inc., a corporation or New York Application July 28, 1939, Serial No. 287,018

1 Claim.

My present invention relates to the treatment 01 porous materialaand the resulting composition. I

W stituency treated according-tummy process, the indicated bottle being typical various forms of The present application is a continuation'in part of my co-pending application Serial No. 113,463, flied November 30,, 1936,, now Patent No. 2,173,882, andentitled Method oitreating porous materials and resulting'product.

A general characteristic of my present invention, similar to the invention" oi. my stated application Serial #113,463, is the treatment of, the

- treated mater-lalwith terpin hydrate ator above its melting temperature of 115 0., either by immersionv in a bath oi the melted material or in g a vaporthereoi at or ab'oye 115 6., rendering the treated material enhanced in hardness and correlated attributes, viz.-, increased ,tensile strength, increased flexual strength, 1 increased compressional strenfgth, etc.

More speciilcally, my present invention relates tothe treatment oi porous material. such as cel-.

lulcsic material, which are insoluble in the 'treat-,

ing materialat treatment temperature, with fortitlers, in conjunction with terpln hydrateior rendering in addition to enhanced hardness, as above set out. proofness against water, attack by vermin, and imparting electrical insulation and dielectric qualities, resiliency or elasticity.

.Certain of the stated iortifiers have the additional efllcacy. of imparting fire resistency.

The major number of the stated iortifiers areof oleaginouseharacter having the quality, in conJunction with terpiii hydrate, to impart the generic qualities 6? water prooiness, repelling vermin, electrical insulation and dielectric qualities, resiliency or elasticity as well as polish, and also improving tensile, flexual and compressional strengths. This group of Iortiiiers includes aluminum stearate, calcium stearate, natural; and synthetic waxes, such as montan wax, carnauba ,wax, ceresin wax, etc., oils such as castor oil, soya bean oil, etc., the aforesaid generically of oleaginous character.

Further features and objects of the invention will be more fully understood from the .i'ollowing serving as 'a bottle or other container;

bottomless as well as bottomed objects, the latter Fig. 3,15 a perspective view, in diagrammatic iorm, illustrating a product formed pursua to my process, the illustration being typical of bricated products, such as corrugated board and theelike, and i Fig. 4 is a diagrammatic view, in elevation, indicating certain essential steps in carrying out the immersion method oi" my invention.

Asa i'ortlfler i'or enhanced water-prooiness, I

cite aluminum subacetate. aluminum stearate;

calcium stearate and the like; Such fortifler may be added, as a powder, to the melted terpinhydrate. For such treatment, such fortifierf singly or plurally, may be of' the. proportion by weight of two percent (2%), and upwards, fifty percent 50%) by weight or such fortifler or fortifiers being ,the usual maximumcontent by weight.

Fortii'lers for effecting high electrical insula tion may be employed coniointly with my stated treatment material, rendering the resulting prodqulrements as commercial electrical insulation. For such purpose, a fortifier such as lead stearate, alone or with a'n'atural or synthetic wax,

may be added to the melted terpin'hydrate.

- such fortifler, the proportion of lead stearate by weight is from two percent (2%) upwardly,

detail description and the accompanying drawins. in which Fig. 1 is a perspective view, in diagrammatic form, illustrating cellulose matter treated pursuant to my process, the-product represented in this figure being typical of so treated natural cellulose matter such as wood or other vegetable matter, pulp formed therefrom. etc.;

Fig. '2 is an elevational view.,in diagrammatic form illustrating a hollow object of cellulose con- :Montan wax, carnauba wax, when employed as fortiilers with terpln hydrate, eflect electrical in-- sulatingqualities to wood and other natural vegetable matter, wood pulp and other cellulose matter, natural, artificial and fabricated.

As typical formulae employing lead stearate as When a natural or synthetic wax is employed in. combination with lead stearate, the respective proportions of lead stearateconte'nt and wax content are from two percent (2%) upwardly,.

the terpln hydrate content usually varying from ninety-two percent (92%) downwardly. In the attainment of electrical insulation, resiliency or elasticity isiinparted to the resulting electrical uct acceptable under the fire underwriters reinsulation material or dielectric by the addition of para gum, castor oil, each of which may be 7 added as a fortifler in proportionirom two per-' 1 cent (2%) upwardly. e

If desired, waxes and the like may be added to the melted terpln hydrate, such as carnauba wax,'ceresin wax, etc., in proportion by weight from two'percent (2%) upwardly, to impart a permanent source of polish or gloss. and iuncthe de- Ila and of exit as at I3b forthe objects to be treated, as for instance, by continuous operation upon a series of objects indicated at I! to be immersed into and conveyed through such bath H, as by means of an endless chain It of conventional or other approved type, suitable muthirty-twoproportional part of color to thirteen I hundred parts of terpin hydrate. by weight.

- Sheets, board, corrugated board, bags; cups and the like, or present commercial and other approved individualproducts of paper and other cellulose constituency, when treated pursuant to my invention," are transformed into strong and rigid objects, possessing optionally any of the stated additional attributes. Tubes, rods and the like 'of original paper or wood pulp or other cellulose constituency are transformed into material suitable for commercial uses comparable irv strength, weight supporting qualities, resistance against crushing, etc. to like attributes of natural wood, metal and the like.

Figure vllllustrates at It) a generally solidarticle typical of substitute lumber, board, tile, bloc, or other unit for wall, floor, ceiling, etc., of buildings, vehicles, such as automobiles-airplanes, toy vehicles, etc., steamboats, lifeboats, canoes,

tually spaced breaker rolls being-indicated at I9, 20, within such tank' l3 to eifect the lowered travel of such endless chain I! to fully immerse such objects I! below the level a of such bath ll; vsuch complete immersion may be positively 'had by the employment of the supplemental rolls indicated at 2i, 2!. Breaker rolls at suitable locations 22 exteriorly of the tank l3 for the rowboats, and other navigation vessels, etc., treated pursuant to my invention as elsewhere morespecifically set forth. L

Figure 2 illustrates at H at object, specifically shown as a bottle, but typical generally of hollqw objects whether provided with a bottom or "not, with variant outer and inner configurations,

treated pursuant .to my invention aselsewhere herei more specifically set forth.

Figure 3 illustrates at 12 an object specifically of mechanically cellular structure but typical generally of fabricated non-solid constituency, treated pursuant to'my invention as elsewhere herein more specifically set forth.

Figure 4 diagrammatically indicates an approved type of tank I! for containing a bath ll of the treatment material, constituted as more specifically set forth elsewhere herein, which bath may be maintained at the desired elevated temperature by means of a heating element at or above the melting point of terpin hydrate, to wit,

1 115 C. shown diagrammatically at l5, advantageously of electrical type, the'electrical wiring being indicated at I6. Such tank is substantlally wholly closed to the outer atmosphere.

as by a cover, canopy or other form of closure desired travel of the endless chain l8 and the propulsion oi the same.

Excelsior, i. e., shredded natural wood, syn- ;thetic wood fiber in shredded or comminuted form, straw or other dried vegetable matter,

grass, reeds and like naturaLjor synthetic cellulose matter, may be treated for heat insulation, pursuant to my"process-,,with proper fortifying ingredient, as herein set out. I

Products'such as linoleum may be formed purwant to my invention, preferably with a fortifler admixed with terpi'n hydrate, for attaining enhanced resistance against water, as well as attaining hardened surface condition, namely, by treatment offpaper stock, pursuant to my process, and employing the above stated fortiflers. In the instance of.the product being of uniform color, such color may be added to the treatment material. In the instance of the product bearing ornamentation, either of varigated outline .and/or color, such omamentation is applied tothe surface of the paper stock in advance of treatment pursuant to my invention. I

Whereas I have described my invention by reference to specific forms thereof, it will be understood that many changes and modifications may be made without departing from the spirit of the invention.

The method of imparting enhanced hardness,

I and enhanced resistance relative to liquids and electrical conduction, to cellulose matter which is insoluble in terpin' hydrate at treatment temperature, which comprises treating such cellulose matter with terpin hydrate admixed with an oleaginous material of the group consisting of aluminum stearate, lead stearate, montanwax, carnauba wax, castor oil, soya bean oil, at a temperature at or above 150 0., the range of proportionof such oleagino aterial varying from approximately 2% to approximately 59% by weight of the terpin hydrate.

CHRISTOPHER LUCKHAUP'I.

lPatent N0 CERTIFICATE OF CORRECTIONQ v Y J y ,1942. CHRISTOPHER LUCKHAUPT.

It is hefeby certified" that error appears I m the printed s specification 'ofthe' above numbered patent yrequiz 'i'ng c'errec'tion as fellows: Page 2, sec- 6nd column, line 53, foi- "150 0." read --115 C.--; an,d that. the 'eaid Letters Patent shouldbe read with this correction therein that the seine may confern; to the recdrd of the case in the Paten t Office.

si neq and: sealed. this zgnd'da ef .I'Iay,' A. D. 1915.

Leslie Frazer (Seal) I h Acting Commissioner of Patents 

